Fantasy Flight Games today released a new campaign and other enhancements for Elder Sign: Omens, now available for iOS (OS X and Android updates will be released shortly). Here's more info on this adventure game for iOS and Android:

Twenty-five new adventures await the investigators in The Trail of Ithaqua, but the hazards of exploring the wilderness are compounded by the supernatural creatures and forces that hunt your party as you progress. The things lurking the woods are closing in, and players must fend them off while supplies dwindle.

Game features:

-A limited number of available Ancient Ones streamlines the game play experience while offering adjustable levels of difficulty. Face Yig in normal mode, Azathoth in difficult mode, or Cthulhu in very hard mode (in-app purchase required to face Cthulhu).

-A number of subtle changes increase the peril of defending humanity. For example, the random negative effects drawn every midnight are more challenging, and the frequency of "no effect" results has been decreased. Monsters have likewise been altered to make them more difficult.

-Finally, there are no Ally cards in Elder Sign: Omens, which further streamlines play while increasing the overall challenge.

The Trail of Ithaqua, an in-app purchase:

The Trail of Ithaqua campaign with two stages and multiple endings-4 new investigators-10 new monsters-25 new adventures-1 new unlockable investigator

A number of free updates:-Tsathoggua, a new Ancient One-2 new monsters-New Mythos effects-The Monster Log feature-iPhone 5 compatibility and bug fixes